Detachable double-helical-ribbon blending device for separately adding fuel

Abstract

The utility model provides a detachable double helical ribbon mixing device for separately adding fuel, which comprises a mixing mechanism, a supporting mechanism and a driving component, the mixing mechanism comprises a mixing shaft, a flange plate and a double helical ribbon blade unit, the mixing shaft is rotatably connected to the supporting mechanism, and the flange plate is rotatably connected to the supporting mechanism. Each double-helical-ribbon blade unit comprises a first helical-ribbon blade and a second helical-ribbon blade, the first helical-ribbon blade and the second helical-ribbon blade are arranged at intervals with the mixing shaft, a groove is formed in the second helical-ribbon blade, and the first helical-ribbon blade penetrates through the groove, is connected with the second helical-ribbon blade and is detachably connected with the flange plate; and the other end of the second helical ribbon blade is detachably connected with the first end of the adjacent flange plate. Therefore, the double-helical-ribbon blades are divided into parts, overall replacement of the blades is avoided, the blades can be disassembled, assembled and maintained respectively, the replacement cost of quick-wear parts is reduced, the blades and the mixing shaft are arranged at intervals, and on the premise of guaranteeing convenient disassembly, the mixing device is suitable for circulating and mixing sintered solid fuel, and the mixing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel mixing for sintering machines, in particular to a detachable double spiral ribbon mixing device for separate addition of fuel. Background Art

[0002] Generally, the solid fuel of a sintering machine is added in batches to change the distribution of the fuel in the sintering material layer, so as to facilitate the more complete combustion of the fuel, increase the combustion speed and the sintering quality.

[0003] The conventional spiral mixing shaft is basically integrally manufactured and welded. As a wearing part, the replacement process is rather cumbersome and requires cutting, grinding and then re-welding. Frequent overall replacement will result in higher costs. Therefore, detachable spiral blades are proposed in the prior art. By welding a connecting block on the outer cylindrical wall of the connecting shaft and helically connecting another one with it, the detachable structure is realized. However, due to the small gap between the spiral blade and the main shaft, this structure is not suitable for mixing materials in the separate addition of fuel, and the mixing effect is relatively poor. There is also a spiral ribbon stirring blade, which is connected to the main shaft by welding a round tube and a spiral ribbon to increase the gap between the blade and the main shaft. However, this method is not convenient for disassembly and assembly due to welding. If there is a blade failure, the whole section needs to be disassembled and replaced, the maintenance means are relatively complex, and the maintenance cost is relatively high.

[0004] In view of this, it is necessary to propose a detachable double spiral ribbon mixing device for separate addition of fuel to solve or at least alleviate the above defects. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a detachable double spiral ribbon mixing device for separate addition of fuel to solve the problem that the gap between the detachable and assembled spiral blade and the main shaft in the prior art is small and not suitable for mixing sintering materials.

[0006] To achieve the above purpose, the utility model provides a detachable double spiral ribbon mixing device for separate addition of fuel, which includes a mixing mechanism, a supporting mechanism and a driving component; wherein,

[0007] The mixing mechanism includes a mixing shaft, a plurality of flange plates arranged at intervals along the axial direction of the mixing shaft, and a plurality of double spiral ribbon blade units arranged between adjacent two of the flange plates. The flange plates are sleeved on the mixing shaft. The mixing shaft is rotatably connected to the supporting mechanism, and one end of the mixing shaft is connected to the driving end of the driving component;

[0008] Every two adjacent double spiral blade units are respectively arranged on both sides of the mixing shaft. Each double spiral blade unit includes a first spiral blade and a second spiral blade. Both the first spiral blade and the second spiral blade are curved and are spaced apart from the mixing shaft. The second spiral blade is provided with a groove, and the first spiral blade penetrates through the groove and is connected to the second spiral blade. One end of the first spiral blade is detachably connected to the first end of the flange plate, and the other end of the first spiral blade is detachably connected to the second end of the adjacent flange plate. One end of the second spiral blade is detachably connected to the second end of the flange plate, and the other end of the second spiral blade is detachably connected to the first end of the adjacent flange plate.

[0009] Preferably, the first spiral blade penetrates through the groove and there is a spaced space between the first spiral blade and the second spiral blade.

[0010] Preferably, the first end of the flange plate and the second end of the adjacent flange plate are distributed on both sides of the mixing shaft along the radial direction of the mixing shaft, and the second end of the flange plate and the first end of the adjacent flange plate are distributed on both sides of the mixing shaft along the radial direction of the mixing shaft.

[0011] Preferably, the groove is arranged in an open shape.

[0012] Preferably, the number of the double spiral blade units is four.

[0013] Preferably, connection holes are provided at both ends of the first spiral blade and the second spiral blade, and the first spiral blade and the second spiral blade are both connected to the flange plate through bolts.

[0014] Preferably, the support mechanism includes a base and two bearing seats oppositely arranged along the axial direction of the mixing shaft. One of the bearing seats is fixed on the base, and both ends of the mixing shaft are rotatably connected to the bearing seats respectively, and one end of the mixing shaft extends out of the bearing seat.

[0015] Preferably, a coupling is further included, and one end of the mixing shaft is connected to the driving end of the driving component through the coupling.

[0016] Preferably, the distance between two adjacent flange plates is 200 mm to 300 mm.

[0017] Preferably, the first spiral blade penetrates through the groove and is connected to the second spiral blade by welding.

[0018] Compared with the prior art, the present utility model has the following beneficial effects:

[0019] A detachable double-screw-rib mixing device with fuel addition in portions provided by the present utility model includes a mixing mechanism, a support mechanism, and a driving assembly. The mixing mechanism includes a mixing shaft, a plurality of flange plates, and a plurality of double-screw-rib blade units. The flange plates are sleeved on the mixing shaft. The mixing shaft is rotatably connected to the support mechanism, and one end of the mixing shaft is connected to the driving end of the driving assembly. Each adjacent two double-screw-rib blade units are respectively arranged on both sides of the mixing shaft. Each double-screw-rib blade unit includes a first screw-rib blade and a second screw-rib blade. Both the first screw-rib blade and the second screw-rib blade are curved and are spaced apart from the mixing shaft. The second screw-rib blade is provided with a groove. The first screw-rib blade penetrates through the groove and is connected to the second screw-rib blade. One end of the first screw-rib blade is detachably connected to the first end of the flange plate, and the other end of the first screw-rib blade is detachably connected to the second end of the adjacent flange plate. One end of the second screw-rib blade is detachably connected to the second end of the flange plate, and the other end of the second screw-rib blade is detachably connected to the first end of the adjacent flange plate. In this way, the double-screw-rib blade is componentized, avoiding the overall replacement of the blade. It can be disassembled and maintained separately, reducing the replacement cost of vulnerable parts. And the spaced arrangement between the blade and the mixing shaft can be applicable to the circulation and mixing of sintered solid fuel on the premise of ensuring convenient disassembly, improving the mixing effect and the quality of sintered ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0021] Figure 1 It is a schematic plan view of the overall structure in an embodiment of the present utility model;

[0022] Figure 2 It is a schematic three-dimensional view of a double-screw-rib blade unit in an embodiment of the present utility model.

[0023] The realization of the purpose, functional characteristics, and advantages of the present utility model will be further described with reference to the embodiments and the drawings.

[0024] Explanation of the reference numerals in the drawings:

[0025] 10. Mixing mechanism; 110. Mixing shaft; 120. Flange plate; 130. Double-screw-rib blade unit; 131. First screw-rib blade; 132. Second screw-rib blade; 1321. Groove; 20. Support mechanism; 210. Base; 220. Bearing seat; 230. Coupling; 30. Driving assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] It should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0030] Please refer to the attached Figures 1 to 2 In one embodiment of the present invention, a detachable double-screw-rib mixing device with fuel separate addition is provided, which includes a mixing mechanism 10, a support mechanism 20, and a driving assembly 30. First of all, it should be noted that different from the prior art where the gap between the detachable spiral blade and the main shaft is small and not suitable for mixing sintering materials, and the method of increasing the gap between the blade and the main shaft is not convenient for disassembly and assembly due to welding. When there is a blade failure, the whole section needs to be disassembled and replaced, the maintenance means are relatively complex, and the maintenance cost is relatively high. The present application solves the above defects in the prior art by providing a detachable double-screw-rib mixing device with fuel separate addition, which is specifically as follows:

[0031] The mixing mechanism 10 includes a mixing shaft 110, a plurality of flange plates 120 arranged at intervals along the axial direction of the mixing shaft 110, and a plurality of double spiral blade units 130 arranged between two adjacent flange plates 120. The flange plates 120 are sleeved on the mixing shaft 110. The mixing shaft 110 is rotatably connected to the support mechanism 20, and one end of the mixing shaft 110 is connected to the driving end of the driving component 30. Each two adjacent double spiral blade units 130 are respectively arranged on both sides of the mixing shaft 110. Wherein, each double spiral blade unit 130 includes a first spiral blade 131 and a second spiral blade 132. Both the first spiral blade 131 and the second spiral blade 132 are curved and arranged at intervals from the mixing shaft 110. The second spiral blade 132 is provided with a groove 1321. The first spiral blade 131 penetrates through the groove 1321 and is connected to the second spiral blade 132. One end of the first spiral blade 131 is detachably connected to the first end of the flange plate 120, and the other end of the first spiral blade 131 is detachably connected to the second end of the adjacent flange plate 120. One end of the second spiral blade 132 is detachably connected to the second end of the flange plate 120, and the other end of the second spiral blade 132 is detachably connected to the first end of the adjacent flange plate 120.

[0032] Specifically, the detachable double spiral mixing device for separate addition of fuel in this application includes a mixing mechanism 10, a support mechanism 20, and a driving component 30. The mixing mechanism 10 is used for mixing the surface fuel and the mixture of the sintering machine. The support mechanism 20 is used for installing the mixing mechanism 10, so that the mixing mechanism 10 is rotatably installed on the support mechanism 20, thereby realizing the effect of stirring and mixing. And the driving component 30 serves as the power source for the rotation of the mixing mechanism 10 to drive the mixing mechanism 10 to rotate. It can adopt a reduction motor, etc., and those skilled in the art can select according to needs.

[0033] Among them, the mixing mechanism 10 includes a mixing shaft 110, a plurality of flange plates 120, and a plurality of double spiral blade units 130 disposed between two adjacent flange plates 120. The mixing shaft 110 is used for rotation to drive the flange plates 120 and the double spiral blade units 130 mounted on the flange plates 120 to rotate. Therefore, it is rotatably connected to the support mechanism 20, and one end thereof is connected to the driving end of the driving component 30, so that the mixing shaft 110 is driven to rotate under the rotation of the driving component 30; and a plurality of the flange plates 120 are arranged at intervals along the axial direction of the mixing shaft 110 to facilitate the installation of the double spiral blade units 130, so that one of the double spiral blade units 130 is installed and connected between every two adjacent flange plates 120. Further, every two adjacent double spiral blade units 130 are respectively disposed on both sides of the mixing shaft 110, so that the plurality of double spiral blade units 130 on the entire mixing shaft 110 are spliced end to end into a spiral shape, ensuring that the mixing effect of each part is consistent after rotation. On the contrary, the traditional integral double spiral blade form is componentized, so that when some blades are damaged, it is not necessary to replace the whole, reducing the replacement cost of vulnerable parts.

[0034] Wherein, each of the double-ribbon blade units 130 includes a first ribbon blade 131 and a second ribbon blade 132. A groove 1321 is formed in the second ribbon blade 132 for the first ribbon blade 131 to penetrate through. After the first ribbon blade 131 penetrates through the groove 1321, it is connected to the second ribbon blade 132 to form an "X"-shaped double-ribbon blade. In this way, when the two ribbon blades stir, the inner and outer layer materials can move towards each other, and the materials will be in a continuous mixing state, ensuring a better mixing effect. Preferably, when connecting the first ribbon blade 131 and the second ribbon blade 132, a welding connection method can be adopted, which has stable connection and convenient processing. The first ribbon blade 131 and the second ribbon blade 132 are both arranged at intervals from the mixing shaft 110, so it is more suitable for mixing in the separate addition of solid fuel. Further, when connecting, taking two flange plates 120 and one double-ribbon blade unit 130 as an example: when one end (top end) of the first ribbon blade 131 is connected to the first end (top end) of a flange plate 120, since the first ribbon blade 131 extends downward in a semi-curved shape from the top, the other end (bottom end) of the first ribbon blade 131 is connected to the second end (bottom end) of the adjacent flange plate 120. Similarly, when one end (bottom end) of the second ribbon blade 132 is connected to the second end (bottom end) of a flange plate 120, since the first ribbon blade 131 and the second ribbon blade 132 form an "X-shaped" double-ribbon blade, the other end (top end) of the second ribbon blade 132 is connected to the first end (top end) of the adjacent flange plate 120, so that the double-ribbon blade unit 130 is detachably connected between the two flange plates 120 and arranged on one side of the mixing shaft 110. For details, please refer to the appendix Figure 1 (the double-ribbon blade unit 130 located at the leftmost side); it is easy to understand that when connecting the next adjacent double-ribbon blade unit 130, it can start connecting from the other side of the mixing shaft 110.

[0035] As a preferred embodiment of the present invention, the first ribbon blade 131 penetrates through the groove 1321 and there is a spaced space between the first ribbon blade 131 and the second ribbon blade 132.

[0036] It should be noted that reserving the spaced space allows the mixed material to effectively pass through, preventing accumulation and blockage of materials, thereby affecting the blade structure.

[0037] As a relatively preferred embodiment of the present invention, the first end of the flange plate 120 and the second end of the adjacent flange plate 120 are distributed on both sides of the mixing shaft 110 along the radial direction of the mixing shaft 110, and the second end of the flange plate 120 and the first end of the adjacent flange plate 120 are distributed on both sides of the mixing shaft 110 along the radial direction of the mixing shaft 110.

[0038] It should be noted that here it means that the first end position of the flange plate 120 and the second end position of the adjacent flange plate 120 are arranged radially opposite along the mixing shaft 110. For example, when the first end of the flange plate 120 is at the top, the second end of the adjacent flange plate 120 is at the bottom; when the first end of the flange plate 120 is at the left end, the second end of the adjacent flange plate 120 is at the right end. This not only facilitates the connection of the spiral ribbon blades in a semi-curved shape, but also ensures that the rotational mixing effect is in place. Similarly, the second end position of the flange plate 120 and the first end position of the adjacent flange plate 120 are arranged radially opposite along the mixing shaft 110.

[0039] As a preferred embodiment of the present invention, the groove 1321 is arranged in an open shape.

[0040] It is worth noting that the open shape facilitates the penetration and installation of the first spiral ribbon blade 131, and at the same time facilitates leaving an interval space for the mixing material to pass through, and is more convenient for welding processing.

[0041] As a preferred embodiment of the present invention, the number of the double spiral ribbon blade units 130 is four.

[0042] It should be noted that the number of the double spiral ribbon blade units 130 can be determined by combining the length of the mixing shaft 110 and the required mixing intensity. In a preferred embodiment of this application, the number of the double spiral ribbon blade units 130 is four. Synchronously, the number of the flange plates 120 is five for connecting and installing the double spiral ribbon blade units 130.

[0043] Furthermore, connection holes are provided at both ends of the first spiral ribbon blade 131 and the second spiral ribbon blade 132, and the first spiral ribbon blade 131 and the second spiral ribbon blade 132 are both connected to the flange plate 120 through bolts.

[0044] It should be noted that providing connection blocks facilitates the bolt connection method of the spiral ribbon blades, which is convenient for disassembly and assembly, is more convenient during maintenance and replacement, and is relatively stable during connection.

[0045] Furthermore, the support mechanism 20 includes a base 210 and two bearing seats 220 arranged axially opposite along the mixing shaft 110. One of the bearing seats 220 is fixed on the base 210, and both ends of the mixing shaft 110 are rotatably connected to the bearing seats 220 respectively, and one end of the mixing shaft 110 extends out of the bearing seat 220.

[0046] It should be understood that the bearing seat 220 is used for rotatably connecting and installing the mixing shaft 110, and one end of the mixing shaft 110 is used for connecting with the driving assembly 30 (reduction motor). Therefore, the amplitude range caused by its rotation has a greater impact. Therefore, to ensure the structural stability during rotation, a base 210 is added under the bearing seat 220 connecting the driving assembly 30 to improve stability, so that one of the bearing seats 220 is fixed on the base 210, and the connected driving assembly 30 can also be fixed on the base 210; wherein, the end of the mixing shaft 110 for connecting with the driving assembly 30 extends out of the bearing seat 220, which is more convenient for connecting with the driving assembly 30.

[0047] Furthermore, a coupling 230 is further included, and one end of the mixing shaft 110 is connected to the driving end of the driving assembly 30 through the coupling 230.

[0048] It should be noted that the coupling 230 can transmit torque and motion, enabling two shafts to work together, and can also compensate for the offset between the two shafts, reduce shaft vibration and noise, and improve transmission efficiency.

[0049] Furthermore, the distance between two adjacent flange plates 120 is 200 mm to 300 mm.

[0050] It should be noted that the distance between two adjacent flange plates 120 can be determined according to the lengths of the first spiral blade 131 and the second spiral blade 132 for easy connection. In a preferred embodiment of the present application, the distance between two adjacent flange plates 120 can be set to 200 mm to 300 mm, preferably, it can be set to 250 mm.

[0051] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural or equivalent process transformation made by using the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A detachable double - spiral ribbon mixing device with separate fuel addition, characterized in that, It includes a mixing mechanism, a supporting mechanism, and a driving component; among them, the mixing mechanism includes a mixing shaft, a plurality of flange plates arranged at intervals along the axial direction of the mixing shaft, and a plurality of double spiral blade units arranged between two adjacent flange plates. The flange plates are sleeved on the mixing shaft. The mixing shaft is rotatably connected to the supporting mechanism, and one end of the mixing shaft is connected to the driving end of the driving component; Every two adjacent double spiral blade units are respectively arranged on both sides of the mixing shaft. Among them, each double spiral blade unit includes a first spiral blade and a second spiral blade. Both the first spiral blade and the second spiral blade are curved and arranged at intervals with the mixing shaft. The second spiral blade is provided with a groove. The first spiral blade penetrates through the groove and is connected to the second spiral blade. One end of the first spiral blade is detachably connected to the first end of the flange plate, and the other end of the first spiral blade is detachably connected to the second end of the adjacent flange plate. One end of the second spiral blade is detachably connected to the second end of the flange plate, and the other end of the second spiral blade is detachably connected to the first end of the adjacent flange plate.

2. The detachable double-ribbon mixing device with fuel fraction addition according to claim 1, characterized in that The first spiral blade penetrates through the groove and there is a spaced space between the first spiral blade and the second spiral blade.

3. The detachable double-ribbon mixing device with separate fuel addition according to claim 1, wherein The first end of the flange plate and the second end of the adjacent flange plate are distributed on both sides of the mixing shaft along the radial direction of the mixing shaft. The second end of the flange plate and the first end of the adjacent flange plate are distributed on both sides of the mixing shaft along the radial direction of the mixing shaft.

4. The detachable double-ribbon mixing device with separate fuel addition according to claim 1, characterized in that, The groove is arranged in an open shape.

5. The detachable double-ribbon mixing device with separate fuel addition according to claim 1, characterized in that, The number of the double spiral blade units is four.

6. The detachable double-ribbon mixing device with separate fuel addition according to claim 1, characterized in that Both ends of the first spiral blade and the second spiral blade are provided with connection holes. The first spiral blade and the second spiral blade are both connected to the flange plate through bolts.

7. The detachable double-ribbon mixing device with fuel addition in portions according to claim 1, characterized in that The supporting mechanism includes a base and two bearing seats arranged oppositely along the axial direction of the mixing shaft. One of the bearing seats is fixed on the base. Both ends of the mixing shaft are respectively rotatably connected in the bearing seats, and one end of the mixing shaft extends out of the bearing seat.

8. The detachable double-ribbon mixing device with fuel separate addition according to claim 1, characterized in that It further includes a coupling. One end of the mixing shaft is connected to the driving end of the driving component through the coupling.

9. The detachable double-ribbon mixing device with separate fuel addition according to claim 1, characterized in that, The distance between two adjacent flange plates is 200 mm to 300 mm.

10. The detachable double-ribbon mixing device with separate fuel addition according to claim 1, characterized in that, The first spiral blade penetrates through the groove and is connected to the second spiral blade by welding.

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